Nasal tract model



FIG. 1 is a perspective view of the nasal tract model in accordance with my invention;

FIG. 2 is a top view thereof;

FIG. 3 is a right-side view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof. 

The ornamental design for a nasal tract model, as shown and described. 